Ms. Massari is a partner in Davis Polk's Financial Institutions Group and the trading and markets practice, based in the Washington DC office. She advises major global banks, asset managers, and corporations on the requirements, impact and implementation of financial regulation, including reforms, focusing on derivatives regulation and the Volcker Rule.

Ms. Massari also advises financial institutions and technology companies on regulatory considerations for digital asset and blockchain businesses and investments. She frequently works with individual firms and industry organizations in connection with advocacy efforts on legislative and regulatory proposals.